<template>
  <!-- 添加或修改菜单对话框 -->
  <el-dialog
    :title="!form.deptId ? '新增': '修改'"
    :visible.sync="visible"
    append-to-body
  >
    <el-form
      ref="dataForm"
      :model="form"
      :rules="rules"
      label-width="80px"
    >
      <el-row>
        <el-col>
          <el-form-item label="上级部门">
            <treeselect
              v-model="form.parentId"
              :options="deptOptions"
              :normalizer="normalizer"
              :show-count="true"
              placeholder="选择上级菜单"
            />
          </el-form-item>
        </el-col>
      </el-row>
      <el-form-item
        label="部门名称"
        prop="name"
      >
        <el-input
          v-model="form.name"
          placeholder="请输入菜单名称"
        />
      </el-form-item>
      <el-form-item
        label="排序"
        prop="sortOrder"
      >
        <el-input-number
          v-model="form.sortOrder"
          :precision="0"
          controls-position="right"
          :min="0"
          :max="100"
        />
      </el-form-item>
    </el-form>
    <div
      slot="footer"
      class="dialog-footer"
    >
      <el-button
        type="primary"
        @click="dataFormSubmit"
      >确 定</el-button>
      <el-button @click="visible = false">取 消</el-button>
    </div>
  </el-dialog>
</template>

<script>
import { addObj, fetchTree, getObj, putObj } from '@/api/admin/dept';
import Treeselect from '@riophae/vue-treeselect';
import '@riophae/vue-treeselect/dist/vue-treeselect.css';

export default {
  name: 'DeptForm',
  components: { Treeselect },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 菜单树选项
      deptOptions: [],
      // 是否显示弹出层
      visible: false,
      form: {
        name: undefined,
        sortOrder: 999,
      },
      // 表单校验
      rules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
        ],
        sortOrder: [
          { required: true, message: '部门顺序不能为空', trigger: 'blur' },
        ],
      },
    };
  },
  methods: {
    init(isEdit, id) {
      if (id !== null) {
        this.form.parentId = id;
      }
      this.visible = true;
      this.getTreeselect();
      this.$nextTick(() => {
        this.$refs['dataForm'].resetFields();
        if (isEdit) {
          getObj(id).then((response) => {
            this.form = response.data.data;
          });
        } else {
          this.form.deptId = undefined;
        }
      });
    },
    // 表单提交
    dataFormSubmit() {
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          if (this.form.parentId === undefined) {
            this.form.parentId = 0;
          }

          if (this.form.deptId) {
            putObj(this.form).then((data) => {
              this.$message.success('修改成功');
              this.visible = false;
              this.$emit('refreshDataList');
            });
          } else {
            addObj(this.form).then((data) => {
              this.$message.success('添加成功');
              this.visible = false;
              this.$emit('refreshDataList');
            });
          }
        }
      });
    },
    /** 查询菜单下拉树结构 */
    getTreeselect() {
      fetchTree().then((response) => {
        this.deptOptions = [];
        const dept = { id: 0, name: '根部门', children: response.data.data };
        this.deptOptions.push(dept);
      });
    },
    /** 转换菜单数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }

      return {
        id: node.id,
        label: node.name,
        children: node.children,
      };
    },
  },
};
</script>
